How to secure Ethernet environment on L4 Linux ?
Taeung
treeze.taeung at gmail.com
Fri Apr 18 13:24:09 CEST 2014
Hello, Adam and L4 Hackers.
Thanks for answering.
When I run 'ifconfig', nothing have happened.
I guess that the cause is /etc folder in ramdisk is not enough to run 'init'.
Would you mind if I ask you another question ?
Must also I modify 'arm-rv.io' ?
or must I modify 'l4lx_xs.cfg' ?
or Do not I need do it ?
If I have to modify them , how to modify ?
(I'm using Freescale imx6q SABRE SD board.)
If you give a bit me hints, I'd appreciate.
I really want to secure Ethernet on L4 Linux...
For reference.
I'm using 'entry L4Linux_XS' as follows
========================
entry L4Linux_XS
roottask moe rom/l4lx_xs.cfg
module l4re
module ned
module l4lx_xs.cfg
module io
*module arm-rv.io*
module vmlinuz.arm
module ramdisk-arm.rd
========================
arm-rv.io in example folder is..
========================
hw-root
{
NIC => new Device()
{
.hid = "smsc911x";
new-res Mmio(0x4e000000 .. 0x4e000fff);
new-res Irq(60);
}
}
l4lx => new System_bus()
{
NIC => wrap(hw-root.NIC);
}
========================
l4lx_xs.cfg is ..
========================
-- vim:set ft=lua:
local lxname = "vmlinuz";
if L4.Info.arch() == "arm" then
lxname = "vmlinuz.arm";
end
L4.default_loader:start(
{ caps = {
log = L4.Env.log:m("rws"),
},
l4re_dbg = L4.Dbg.Warn,
log = { "l4linux", "yellow" },
},
"rom/" .. lxname .. " mem=64M console=ttyLv0 l4x_rd=rom/ramdisk-" .. L4.Info.arch() .. ".rd root=1:0 ramdisk_size=4000 init=/bin/sh");
========================
- Taeung -
Message: 1
Date: Mon, 14 Apr 2014 23:48:27 +0200
From: Adam Lackorzynski<adam at os.inf.tu-dresden.de>
To:l4-hackers at os.inf.tu-dresden.de
Subject: Re: How to secure Ethernet environment on L4 Linux ?
Message-ID:<20140414214826.GC6533 at os.inf.tu-dresden.de>
Content-Type: text/plain; charset=iso-8859-1
On Fri Apr 11, 2014 at 10:28:39 +0900, Taeung wrote:
> After I succeeded putting other package in ramdisk, I'm trying to take
> Ethernet on L4 Linux.
>
> When I built L4 Linux , I've configured '[*]Network support ' and
> '[*]Network device driver support'.
> I've copied 'etc' folder from other file system and put it in ramdisk.
> And I've put somethings about Network in ramdisk.
>
> Manually I've mounted '/proc' and '/sys' and tried to run command 'if -a'.
> But I've failed secure Ethernet environment on L4 Linux.
> To put it concretely, I was not able to run command 'ifup -a' successfully.
Does ifconfig show the proper network interface?
Adam
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